baber/WOPTO huggingface dataset:
Patent GB-648708-A (GB)
Title: Finder for telephone and like systems
Inventor: BELLAIRS GUY FFARINGTON
IPC: H04M7/16
Filed: 1947-01-27
Abstract: 648,708. Automatic exchange systems. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd. Jan. 27, 1947, Nos. 1092/48 and 1093/48. Divided out of 648,674. [Class 40 (iv)] [Also in Group XL (c)] A frequency-finder for use in the highfrequency system described in Specification 648,674 comprises a sweep oscillator and a detector which arrests the sweep when the combination frequency produced by the oscillator and a calling or " go " frequency attains a predetermined value. The oscillator sweep is not stopped if the calling frequency is busy, the busy condition being indicated by the presence of a " return " frequency. The busy condition of a channel may alternatively be indicated by a frequency impressed on the calling frequency. Variable frequency oscillator : a valve V2 oscillates at a high frequency controlled by a reactance valve V1 to the control grid of which is connected the output of a sawtoothed oscillator comprising a neon tube NT and a condenser C1. To extend the sweep of the oscillations over a frequency range large in proportion to the mean frequency, the oscillator V2 is arranged to produce a high frequency oscillation which is reduced to the desired range by a heterodyne process. The output of a fixed frequency oscillator V4 common to the whole exchange modulates the output of V2 in a mixer hexode V3 and the resultant high frequency output from V3 forming the sweep oscillations is accepted by a low-pass filter LPF1. Testing for a "return" " carrier on cable CC1A : a " return " carrier on CC1A is modulated in a mixer V10 with 2000 c/s. from an oscillator V11 common to the whole exchange. The output from V10 is in turn modulated in a mixer V8 by the sweep oscillations from V3. If the resultant intermediate frequency is 2000 c/s. or less, it is accepted by the low-pass filter LPF2 and after rectification at RF4 and amplification at V12 operates relay B. Relay A is disabled at b1 so that a corresponding "go " carrier is not detected and the sweep oscillator cannot be stopped at a1. Testing for a " go " carrier on cable CCIB any carrier present on the cable CC1B modulates the sweep oscillation in a mixer V5 and the resultant intermediate frequency is applied through a tuned transformer T2 serving as a band-pass filter to a detecting arrangement comprising amplifier valves V6, V7, a rectifier RF1 and a relay A. The sweep oscillator is stopped at a1, the sweep oscillations (now fixed) are applied to the cable CC1A as the "return" carrier and the arrangement for detecting the return carrier is disabled. The discriminator D includes a parallel tuned circuit L2, C18 connected to the anode of V6 and tuned to a frequency in the middle of the pass-band of T2. The discriminator automatically controls V2 to bring the output of V6 into tune with L2, C18. Audio-frequencies received over the transformer T5 modulate the " return " carrier in V9. Modulations on the "go " carrier on CC1B are passed on at audio-frequency over transformer T3. Specifications 648,707, 648,709 and 648,710 are referred to.
Patent GB-606307-A (GB)
Title: Improvements in or relating to geometrical compasses
IPC: B43L9/02
Filed: 1946-01-11
Abstract: 606,307. Drawing-compasses. MARKHAM, W. L. Jan. 11, 1946, No. 1099. [Class 97 (iii)] The legs are formed by strips of material 1 pivoted together at 3 and provided along each edge with sockets or inwardly facing open channels 2 adapted to support a spring wire frame 11, 12, carrying the point 13, a spring wire pencil clip, Fig. 5, and at the other ends of the legs a pair of spring wire extensions 15, each provided with an eye formation 18 to receive a marking point. The pivot bolt 3 may pass through a selected pair of a series of holes 4 in the strips 1. A spacer 19, Fig. 8, may cooperate with a pair of holes 4 to hold the legs at a predetermined angle. When used as proportional dividers the point and pencil holder are replaced by an additional pair of extensions 15.
Patent GB-264523-A (GB)
Title: An improved device for the fuel-distribution in multi-cylinder internal combustion engines
IPC: F02M61/20
Filed: 1927-01-14
Abstract: 264,523. Naamlooze Vennootschap Appingedammer Bronsmotorenfabbriek. Jan. 15, 1926, [Convention date]. Cylinders receiving liquid fuel. - In a multicylinder engine in which all the fuel-injection valves are supplied by a single pump which makes a number of strokes equal to the number of injections required, the valves 10 are opened by the pressure of the fuel in the supply pipe 8 acting on a piston 9, when the pressure of a spring 6 acting thereon is relieved by a cam device 2, 4.
Patent GB-1394813-A (GB)
Title: Apparatus for the production of a homogeneous gas mixture
IPC: B01F23/10
Filed: 1974-01-11
Abstract: 1394813 Mixing apparatus FRIEDRICH UHDE GmbH 11 Jan 1974 [13 Jan 1973] 01311/74 Heading B1C Apparatus for producing a homogeneous gas mixture from two gas streams of different properties comprises a pair of tube plates 8, a plurality of tubes 9 disposed across the space between the tube plates, each tube having an internal restricting orifice 4 and upstream of said orifice at least one aperture 10 for passage of gas into the tube from the space between the tube plates and a chamber 12 around the space between the tube plates, a wall 13 of the chamber 12 having apertures 14 for the passage of gas from the chamber to the space between the tube plates. The apparatus may be incorporated in an ammonia or methanol synthesiser in which reaction gas from a first catalyst bed 1 passes into the tubes 9 and is mixed with quench gas supplied via a pipe 11 to the chamber 12, the homogeneous gas mixture produced passing to a further catalyst bed 6.
Patent GB-1337013-A (GB)
Title: Method and apparatus for manufacturing a deep fried food product
IPC: A21C1/14
Filed: 1971-01-11
Abstract: 1337013 Apparatus for deep fried food HOBART MFG CO 11 Jan 1971 [18 Feb 1970] 1316/71 Heading A4D [Also in Divisions B1 B5 and B8] Cooking apparatus comprises a cooking well 12 having spaced side walls and an inclined wall portion 52 and an opposed wall portion 51, means 53 for heating the cooking medium in the well and means 60 for conveying the food product into the cooking medium downwardly along the wall portion 52 and then upwardly along the wall portion 51. In use a dried or powdered food product is placed in bowl 20 and a timed spray of water from the nozzle 200 is mixed with the powder by a stirrer 23 which rotates around two axles 24, 25. A safety switch 26 prevents the apparatus being switched on when the bowl 20 has been removed. When the mixture in the bowl is at a suitable consistency for extrusion, a gate (not shown) between the bowl and the extrusion chamber 18 is opened. The mixture is carried along the chamber by the worm 40 and forced through a die in the cut-off valve 47 in the extrusion head 19. The food falls into cooking chambers defined by the flights 71 on the conveying means 60. The flights are pivotally mounted to chains which pass over sprockets at the top and bottom of the conveying means. The sprockets are held on axles 63 placed between the side walls 61 of the conveying means 60. The conveying unit 60 can be removed from the cooking well 12 and is driven by a pawl mechanism and passes the food through the cooking medium in the direction shown by the arrow 201 with an intermittent motion. The temperature of the cooking medium is controlled by heaters 53 and thermostat 54. The food is ejected from the right hand side of the conveying means. The drive for the cut-off valve 47, the conveying means 60 and the worm 40 is supplied by motor 90. Clutch 105 interrupts the drive to the worm 40 whilst valve 47 is closed. The cooking medium may be filtered by opening valve 14 when the medium passes through filter 185 into tank 182 which is emptied by pump 181.
Patent GB-471032-A (GB)
Title: Method of and means for receiving bodies of tins and feeding them to a soldering or folding mandrel
IPC: B21D51/26
Filed: 1937-01-15
Abstract: 471,032. Making can bodies. SCHULER AKT.-GES., L. Jan. 15, 1937, No. 1324. Convention date, Jan. 21, 1936. [Classes 83 (ii) and 83 (iv)] In a method of making can bodies the blank passes between bending rollers 1 and 3, Fig. 1, and its forward end engages against a stop 6 while the rear end is still in a plane and the tension produced in the final stages of the bending causes the body to snap back around a mandrel 5 against a second stop 7 whence it is slid onto a soldering or folding mandrel. A spring plate 10 assists in guiding the work around the mandrel and to ensure that after leaving the bending rollers the end of the blank snaps past the guide 9 against the stop 7. The mandrel is then rotated to the Fig. 2 position and jaw members 13, 14 are closed onto the body and pass it through an edge registering device, and onto a soldering or folding mandrel 21. In a modification, Fig. 5, the blank 20 passes over a mandrel 22 in front of which is located a disc 23 carrying a pin 24 actuated by a cam 25. After the body has passed onto the mandrel the disc is rotated until the pin engages the end 27 of the body and moves it to the required position for transference onto the soldering or folding mandrel by axial movement of the disc which may be simultaneous with the rotary movement. In another modification similar to that shown in Fig. 5, the body is supported on its outer periphery after it leaves the bending rollers. Specification 227,441, [Class 83 (iv)], is referred to.
Patent GB-538279-A (GB)
Title: Opposed-piston internal-combustion engine
IPC: F02B75/28
Filed: 1940-01-24
Abstract: 538,279. Actuating air &c. compressors. FRANKFURTER MASCHINENBAU-AKT.- GES. Jan. 24, 1940, No. 1444. Convention date, Jan. 25, 1939. [Class 8 (i)] [Also in Group XXVII] In an engine having opposed pistons 3, 4, working in each cylinder 2 and connected to a common crankshaft 28 through levers 22, 23 and rods 26, 27 the engine piston 3 which controls the exhaust port 5 is connected to a compressor piston 9, while the other engine piston 4 is connected to a scavenging-pump piston 10. As shown in Fig. 1, each compressor or pump piston is carried by the rod of the engine piston which is connected by a link 20 or 21 to the lever 22 or 23. In modifications, (a) the engine and pump piston-rods 29, 30 are pivotally connected at 31, Fig. 2, to the levers 22, 23; (b) the engine and pump pistons are relatively offset and the piston-rods 29, 30, Fig. 3, are connected to the levers 22, 23 at different points, so that the pump pistons have a shorter stroke than the engine pistons ; (c) stage compressors are employed, the lowpressure pistons being connected to the outer ends of the levers 22 and the high-pressure pistons to points near the pivots of the levers ; (d) integral engine pistons 33, 35 and compressor and pump pistons 34, 36, Fig. 4, are pivotally connected at 39, 40 to the levers 37, 38 which are pivoted at 41, 42 upon levers 43, 44 turning on a pivot 45, mounted on an adjustable eccentric or on separate pivots.
Patent GB-567709-A (GB)
Title: Process for preserving wood and like organic material and preservatives therefor
IPC: B27K3/32
Filed: 1943-01-28
Abstract: 567,709. Preserving wood &c. BOLIDENS CRUVAKTIEBOLAG., and HAGER, B. O. Jan. 28, 1943, No. 1483. [Class 140] A preservative for wood or other organic material comprises an aqueous acid solution or paste containing (a) arsenic acid and/or alkali arsenate ; (b) hydrofluoric acid and/or alkali fluoride; (c) chromic acid, a chromate or a bichromate ; and (d) a metal salt or salts capable of forming both difficultly soluble arsenates and difficultly soluble fluorides. Soluble salts of calcium, magnesium, zinc, aluminium, or copper may be used, zinc, aluminium and copper salts being effective for fixing arsenic acid. Calcium and magnesium salts will fix both arsenic acid and hydrofluoric acid, but are preferably used with one or more of the others. A solution in water of a mixture of sodium dichromate, aluminium sulphate, zinc sulphate, sodium hydrarsenate, orthoarsenic acid, sodium fluoride, and calcium nitrate or magnesium sulphate may be used. Silicic acid, carbohydrates, or casein may be added to modify the viscosity.
Patent GB-1310663-A (GB)
Title: Semiconductor thermometer for low temperatures
IPC: G01K7/22
Filed: 1971-01-12
Abstract: 1310663 Resistance thermometers COMPAGNIE GENERALE D'ELECTRICITE 12 Jan 1971 [12 Jan 1970] 1545/71 Heading H1K A resistance thermometer suitable for low temperatures comprises a bar of semi-conductor material located within a cavity in one face of a support, the bar being secured to the support at one end and its resistance being measured between points spaced from this end. As shown, Fig. 1, a Ge bar 1 is secured within a groove 4 in one face of a support 2 by means of resin 5 and four points spaced from the fixed end 3 of the bar are connected by As-containing Au wires 6 to leads 8 the ends of which are covered by resin beads 9, 10. A cover (12, not shown) may be secured over the grooved face of the support. In use current is passed through the bar between the outer contacts and the resistance of the section between the inner contacts is measured using a potentiometric method. The support may be of gold-plated mono- or polycrystalline intrinsic Ge, of mono- or polycrystalline intrinsic Si, of corundum or of quartz.
Patent GB-523702-A (GB)
Title: Improvements in or relating to means for playing a board game involving the collecting and using of cigarette cards, advertising cards or coupons
IPC: A63F1/06
Filed: 1939-01-17
Abstract: 523,702. Board games. PINKER, M. W. Jan. 17, 1939, No. 1596. [Class 132 (ii)] A set of game appliances comprises a board bearing markings a<SP>1</SP> representing a cricket 'pitch, football field or other playing field, markings a<SP>3</SP> indicating the positions in which cigarette cards, advertising cards or coupons are to be affixed and further markings a<SP>2</SP> for score - determining purposes, together with a series of playing-cards bearing consecutive numbers, or letters, and cards, Fig. 2, constituting indicators for pivotal attachment above the score-determining markings a<SP>2</SP>. The cards constituting indicators may be folded into arrow form. The game is played by spinning the cards, Fig. 2, and scoring as indicated by the sections in the spaces a<SP>2</SP>.
Patent GB-122837-A (GB)
Title: Improvements in Dynamo Electric Machines.
Inventor: JEAN CHARLES SEAILLES
IPC: H02K31/02
Filed: 1919-01-22
Abstract: 122,837. Seailles, J. C. Jan. 30, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Collectors.-Consists in taking off current from the rotor peripheries of a homopolar dynamo by means of a chain cable, or metallic belt 6, Figs. 3 and 5, direct contact, Fig. 6, or by gearing, Figs. 7 and 8. In a machine with a single rotor, Fig. 4, a second disk 7, which does not rotate in a magnetic field, is used solely to take off current.
Patent GB-534322-A (GB)
Title: Production of sebacic acid and other organic compounds
IPC: C07C31/125
Filed: 1940-01-26
Abstract: 534,322. Sebacic acid. AMERICAN CYNAAMID CO. Jan. 26, 1940, No. 1641. Convention date, Feb. 8, 1939. [Class 2 (iii)] Sebacic acid is produced by adding ricinoleic acid or a ricinoleate such as castor oil or ricinoleic amide to caustic alkali solution maintained at 235-400‹C., preferably below 275‹C., the rate of addition being below that at which excessive foaming occurs. Capryl alcohol and methyl hexyl ketone are produced as volatile by-products. The reaction product is slightly acidified to separate unchanged oil, and the aqueous layer then strongly acidified to separate sebacic acid. Foaming is reduced by adding the castor oil slowly or adding a highboiling hydrocarbon oil. The principal byproduct is capryl alcohol, but this may be returned to the reaction vessel to produce methyl hexyl ketone. The yield of sebacic acid may be increased by introducing oxygen or air into the reaction vessel, and the yield of capryl alcohol by adding a small quantity of a calcium salt. Ricinoleate from a supply 8 is passed into a reaction chamber 1 containing the alkali solution through a pipe 9 containing a sight glass, volatile products passing off through a pipe 14 containing a sight glass 15 to a condenser 16 and separator 21. The oily layer from the separator 21 may be returned to the reaction chamber by a pipe 29 or drawn off at 32. If it is desired to separate methyl hexyl ketone, this layer is treated with a bisulphite and the ketone is recovered from the bisulphite compound. A part of the aqueous layer from the separator 21 is returned to the reaction chamber by a pipe 25 in which is a valve 30 operated by a thermostat 40. The feed of ricinoleate to the reaction chamber is regulated so that no foam is visible in the sight glass 15.
Patent GB-1410113-A (GB)
Title: Container for liquid or other fluent goods
IPC: B65D5/60
Filed: 1973-01-12
Abstract: 1410113 Lined cartons; packaging CHRISTENSSONS MASKINER & PATENTER AB 12 Jan 1973 [24 Jan 1972] 1680/73 Headings B8P and B8C A carton erected from a blank and tubular lining, Fig. 1, and including an individual top closure flap 31 and three connected and creased top closure flaps 28-30, is closed at its top end by forming a fin seal 42 in the lining 10, folding the top closure flaps 28 and 30 inwardly to produce a slot in which the fin seal 42 is clamped, simultaneously folding the top closure flap 29 outwardly about crease 34 and on to itself along creases 32, 33 to enclose an ear which has been formed in the lining, folding the top closure flap 31 and an associated ear 44 of the lining on to the top closure flaps 28, 30 and folding the top closure flap 29 and the enclosed lining ear against side wall 13 or the top of the carton. The top closure flap 29 is held in position by a glued piece of paper (49, Fig. 6, not shown). The carton is opened by removing the piece of paper (49) and tearing-off the exposed portion of the fin seal; which latter operation is facilitated by a cut 48 in the fin seal. A pouring spout is produced, Fig. 7 (not shown), in the opened carton by inwardly pressing the upper regions of opposed side walls 12, 14 to cause bending about creases 32, 33, 35-38. The lining is adhered to the top closure flaps 28-30. The cardboard blank may be covered by polyethylene and the lining may be polyethylene coated aluminium foil.
Patent GB-547009-A (GB)
Title: Double acting two stroke internal combustion engines with opposed pistons
IPC: F02B75/00
Filed: 1941-02-07
Abstract: 547,009. Two-stroke engines. PETERSEN, O., and SOLVER, E. Feb. 7, 1941, No. 1688. Convention date, Dec. 11, 1940. [Class 7 (ii)] In a double-acting engine with pistons and driving mechanism as described in Specification 493,665 the central piston 1 controls the exhaust ports 10 and the oppositely-working pistons 11 19 control the admission ports 20 20<SP>1</SP>.
Patent GB-799114-A (GB)
Title: Improvements in or relating to plastic dies, jigs and the like
Inventor: JONES STANLEY OLIVER
IPC: E04B1/58
Filed: 1956-01-18
Abstract: 799,114. Machine-tool details. PRESSED STEEL CO., Ltd. March 13, 1957 [Jan. 18, 1956; Jan. 18, 1956], Nos. 1690/56 and 1691/56. Class 83 (3). [Also in Group XXVIII] A jig or model comprises a framework of plastic tubular members, some of which are connected by ball-type joints 15 bonded with cement. The jig has a working-surface 10 supported on an upper lattice 12 supported in turn by struts 13 and braces 14 on a lower lattice 11. The ball-joints consist of a ball 16, Fig. 3, connected to a saddle 17 bonded to a tubular member 18, the ball being bonded to a connecting member 20 by synthetic cement 21, retained by a wooden plug 22, after the frame has been set in its desired configuration. The saddle 17 may be flat for securing to a non- tubular member. Plane feet 23-25 having L, T or X jointing-channels are bonded to the base of the framework, a foot having an X- joint being shown in Fig. 6. In a modification, the ball of a ball-joint is secured to a tube by a screwed connection. Abutting tubes may have interfitting ends.
Patent GB-1366473-A (GB)
Title: Tunable crossed field electron discharge device
IPC: H01J25/50
Filed: 1973-01-12
Abstract: 1366473 Magnetrons RAYTHEON CO 12 Jan 1973 [3 Feb 1972] 1699/73 Heading H1 The outer resonant cavity of a ditherable coaxial magnetron is tuned by means movable in a path transverse to the axis of the cavity, to introduce a disymmetry in the cavity wall geometry in the region of maximum electric field intensity. As described, the tuning means is in the form of a pair of semicircular rings 60, housed in a groove 62 at the midpoint of the cavity wall, the rings being anchored at one end and cyclically displaceable in a radial direction at the other, by a motor-driven cam arrangement (Figs. 7e, 8, not shown), to cause their variable protrusion into the cavity volume. Damping arrangements (e.g. 114, Fig. 5, not shown) may be located at the mid-point of each ring to damp vibrations, and made absorbers of lossy material (78, 80, Fig. 8, not shown) are included in the outer cavity. The tuning range may be broadened by the use of two rings, of different widths, mounted in the same groove (Fig. 11, not shown), and coarse tuning is effected by the axially displaceable plate 54. Metal bellows forming part of the actuating means for the half-rings may be filled with a liquid having an expansion coefficient chosen to produce such movement of the rings as compensates for temperature variation of the cavity resonant frequency.
Patent GB-139558-A (GB)
Title: Improvements in or relating to cloak-room fittings for use in schools, factories, and other places
IPC: A47G25/06
Filed: 1919-01-23
Abstract: 139,558. Hunt, A. C. Jan. 23, 1919. Hooks.-Hat and coat hooks designed for attachment to horizontal rails are provided with a base-plate A shaped to fit the rail F and having a narrow hook-shaped extension C at its upper end and a lug B at its lower edge to receive a screw bolt G. The part C clips over the base-plate of another hook when two are arranged back to back, as shown in Fig. 3, or over an attaching-plate formed like the base-plate A when a hook is fixed to only one side of a rail. Reference has been directed by the Comptroller to Specifications 649/05 and 15411/07.
Patent GB-450470-A (GB)
Title: Improvements in or relating to transmission gearing
IPC: F16H27/10
Filed: 1935-01-18
Abstract: 450,470. Variable intermittent gearing ; clutches. ATKINSON, J. S., and STEIN & ATKINSON, Ltd., 47, Victoria Street, Westminster. Jan. 18, 1935, No. 1742. [Class 80 (ii)] Mechanism for transmitting a variable intermittent drive to, for example, a coal-feeding apparatus for a furnace, comprises a motor 11 driving a freely mounted wheel 6 through gearing 10, 9, and a driven shaft 1 carrying a friction drum 5. Surrounding the drum 5 and anchored at its two ends 14, 16 to the wheel 6 is a friction band 15, the end 14 being attached to a crank 13 on a spindle 12 journalled in the wheel 6. The other end of the spindle 12 is provided with two arms carrying rollers 19 and 18 which are adapted to engage respectively, each revolution of the wheel 6, with a fixed cam 23 and the crest 20<1> of an adjustable cam 20. The cam 23 gives a partial turn to the crank 13 to tighten the band 15 which thereby transmits the drive to the drum 5 and the crest 20<1> of cam 20 releases the friction band 15 to disengage the drive, the relative positions of the cams 23 and 20 determining the period during each revolution of the wheel 6 that the drive is transmitted. The cam 20 is adjusted to vary this period by a hand wheel and gearing (not shown) to the wheel 21 integral with the cam. In a modification, instead of a friction drive, a pawl is carried by the wheel 6 and teeth are provided on the drum 5, the engagement and disengagement of the pawl being effected by a fixed cam and an adjustable cam as before.